Water purification unit



FIG. 1 is a perspective view of my design for a water purification unit;

FIG. 2 is a rear view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a right side view of which the left side view is a mirror image thereof;

FIG. 5 is a bottom view; and,

FIG. 6 is a top view of the inventive design.

The valve in FIGS. 5 and 6 is shown in an alternate position. 

The ornamental design for a water purification unit, as shown and described. 